[fpc-devel] Console IO revisited
thaddy at thaddy.com
Fri Dec 3 13:47:21 CET 2010
On 3-12-2010 13:38, Michael Van Canneyt wrote:
> On Fri, 3 Dec 2010, Thaddy wrote:
>> Sorry if this is already picked up as it IMHO should have been. I
>> missed some mails due to a server crash.
>> Today I encountered a similar issue with using threadvars for the
>> input, output and err variables in system when trying to use the
>> input as a win32 sync handle with the CreateFile API. Fails miserably.
>> This is specified in the windows API documentation, but is broken in
>> FPC because the IO are not global to a process but threadvar.
> Would you care to explain this ?
> The variables Input, Output and StdErr may be threadvars, but they
> share a single common OS handle. So any OS-specific functions should
> still work if you are using the handles.
No they do not, see my previous post, hence my problem. Mind the words
"even if" in the win api doc cit.
I may be * very * wrong, but it simply doesn't work as expected. Under
Delphi it works as expected and in line with the API documentation. I am
investigating Linux (Ubuntu and my own woof builds) to get a similar
example working without workarounds.
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